first-rate (not comparable)

1. (UK, military, nautical, historical) Of a Royal Navy ship of the line in the Napoleonic Era: having at least 100 guns across three gun decks, a complement of 850–875, and weighing approximately 2,500 tons burthen.
2. (idiomatic) Superb, exceptional; of the best sort; very high quality.
   • 1867, Matthew Arnold, On the Study of Celtic Literature:

     Our only first-rate body of contemporary poetry is the German.

   • 1897 December (indicated as 1898), Winston Churchill, chapter I, in The Celebrity: An Episode, New York, N.Y.: The Macmillan Company; London: Macmillan & Co., Ltd., →OCLC ↗, page 2 ↗:

     He used to drop into my chambers once in a while to smoke, and was first-rate company. When I gave a dinner there was generally a cover laid for him. I liked the man for his own sake, and even had he promised to turn out a celebrity it would have had no weight with me.

• French: de premier choix
• German: erstklassig
• Portuguese: de primeira classe
• Russian: первокла́ссный
• Spanish: de primera, excelente

first-rate (plural first-rates)

1. (UK, military, nautical, historical) A first-rate ship of the line.